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Finding the Fourth Proportional to 405,997.55, 609,057.80 and 294,518.96

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Solution

The fourth proportional to 405,997.55, 609,057.80 and 294,518.96 is: 441,823.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,997.55 : 609,057.80 = 294,518.96 : x
  2. Step 2: Convert to fraction form
    405,997.55/609,057.80 = 294,518.96/x
  3. Step 3: Cross multiply
    405,997.55x = 609,057.80 × 294,518.96
  4. Step 4: Simplify right side
    405,997.55x = 179,379,068,363.29
  5. Step 5: Solve for x
    x = 179,379,068,363.29/405,997.55
  6. Step 6: Final answer
    x = 441,823.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.